JP2888603B2 - Surface sheet for absorbent articles - Google Patents
Surface sheet for absorbent articlesInfo
- Publication number
- JP2888603B2 JP2888603B2 JP2134440A JP13444090A JP2888603B2 JP 2888603 B2 JP2888603 B2 JP 2888603B2 JP 2134440 A JP2134440 A JP 2134440A JP 13444090 A JP13444090 A JP 13444090A JP 2888603 B2 JP2888603 B2 JP 2888603B2
- Authority
- JP
- Japan
- Prior art keywords
- coating layer
- nonwoven fabric
- topsheet
- projections
- height
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、吸収性物品の表面シートに関し、更に詳し
くは、不織布を基材とし、生理用ナプキンなどの吸収性
物品の肌当面を形成する表面シートに関する。Description: TECHNICAL FIELD The present invention relates to a surface sheet of an absorbent article, and more particularly, to a nonwoven fabric as a base material for forming a skin contact surface of an absorbent article such as a sanitary napkin. Related to topsheet.
〔従来の技術とその課題〕 従来、生理用ナプキンなどの吸収性物品において、そ
の肌当面における体液のスポット吸収、体液の残留減少
及びドライ感の向上を目的として、表面シートとしての
不織布の表面に疎水性樹脂を部分的に塗布して所要パタ
ーンの疎水性皮膜を形成したものが知られている。しか
し、このものにおいては、疎水性皮膜が不織布の表面上
にこれと実質的に同平面に位置しているため、その皮膜
が位置しておらず不織布が露出する透液部も不透液部と
しての疎水性皮膜部と同じように着用者の肌に密着す
る。したがって、表面シートと肌との間に蒸れが生じ易
いうえ、ナプキンの内部に吸収された体液が逆流して容
易に表面シートの表面から滲出する。そのため、肌に湿
潤感、ひいては不快感を与える。[Prior art and its problems] Conventionally, in absorbent articles such as sanitary napkins, for the purpose of spot absorption of bodily fluids on the skin surface, reduction of residual bodily fluids and improvement of dry feeling, the surface of a nonwoven fabric as a topsheet is It is known that a hydrophobic resin having a required pattern is formed by partially applying a hydrophobic resin. However, in this case, since the hydrophobic film is located on the surface of the nonwoven fabric and substantially flush with the surface of the nonwoven fabric, the liquid-permeable portion where the film is not located and the nonwoven fabric is exposed is also a liquid-impermeable portion. And adheres to the wearer's skin in the same manner as the hydrophobic coating. Therefore, stuffiness tends to occur between the topsheet and the skin, and the bodily fluid absorbed inside the napkin flows backward and easily exudes from the surface of the topsheet. For this reason, it gives the skin a moist feeling, and thus a discomfort.
一方、生理用ナプキンなどの吸収性物品において、前
記物品の目的とほぼ同様の目的から、疎水性樹脂フィル
ムに開孔を配列形成するとともにその下面から体液導入
管を突出させたものが知られている。しかし、このもの
においては、使用時に体圧が加わったとき、体液導入管
が変形又は閉塞して体液の導入が困難又は不可能になる
ことがある。On the other hand, in absorbent articles such as sanitary napkins, it is known that for substantially the same purpose as that of the article, an aperture is formed in a hydrophobic resin film and a bodily fluid introduction pipe projects from the lower surface thereof. I have. However, in this case, when a body pressure is applied during use, the body fluid introduction tube may be deformed or closed, and it may be difficult or impossible to introduce the body fluid.
本発明の目的は、不透液部としての凸部と透液部とし
ての凹面とを所要パターンで配列形成することで、前記
欠点を除去することができる吸収性物品の表面シートを
提供することにある。An object of the present invention is to provide a surface sheet of an absorbent article that can eliminate the above-mentioned defect by arranging and forming a convex portion as a liquid-impermeable portion and a concave surface as a liquid-permeable portion in a required pattern. It is in.
前記目的を達成するための本発明に係る表面シート
は、熱可塑性繊維を含む透液性不織布に互いに独立し底
面が開口する中空の多数の凸部および一連に連続する凹
部を所要パターンで配列形成し、前記凸部の頂面に熱可
塑性かつ疎水性皮膜層を一体に融着接合してあり、前記
皮膜層を含まない前記凸部の高さを前記凹部の底面より
も高くなし、前記皮膜層の面積比率を10〜80％になし、
その皮膜層を含む前記凸部の高さを0.5〜3mmになしてあ
る 〔作用〕 前記構成を有する本発明に係る表面シートにおいて
は、吸収性物品の表面シートとして使用したとき、凸部
の頂面に位置する疎水性皮膜層が肌に接触する。凸部の
間の透液部としての凹部における体液がそれぞれ透過す
ると同時に、皮膜層における体液が凹部に流動しそれを
透過して、物品の内部に吸収される。In order to achieve the above object, the topsheet according to the present invention is formed by arranging a number of hollow convex portions and a series of continuous concave portions that are independent of each other and have a bottom opening in a liquid-permeable nonwoven fabric containing thermoplastic fibers in a required pattern. A thermoplastic and hydrophobic coating layer is integrally fusion-bonded to the top surface of the projection, and the height of the projection not including the coating layer is not higher than the bottom surface of the recess, and the coating is formed. Make the area ratio of the layer 10-80%,
The height of the projections including the coating layer is 0.5 to 3 mm. [Operation] In the topsheet according to the present invention having the above configuration, when used as a topsheet of an absorbent article, the top of the projections The hydrophobic coating layer located on the surface comes into contact with the skin. At the same time, the bodily fluid in the concave portion as the liquid-permeable portion between the convex portions is transmitted, and at the same time, the bodily fluid in the film layer flows into the concave portion, passes through the concave portion, and is absorbed inside the article.
体圧が加わったとき、この部位における表面シートの
凸部がへこみ又はつぶれることがあるが、その体圧が解
かれると復元する。このように表面シートはクッション
性を有する。もとより、前記透液部は、体圧下で凸部が
へこみ又はつぶれても、これが体液の透過にいささかも
支障にはならない。When the body pressure is applied, the convex portion of the topsheet in this portion may be dented or crushed, but is restored when the body pressure is released. Thus, the topsheet has cushioning properties. Of course, in the liquid-permeable portion, even if the convex portion is dented or crushed under the body pressure, this does not hinder the transmission of the body fluid.
図面を参照して、本発明に係る表面シートの実施例を
説明すると、以下のとおりである。An embodiment of the topsheet according to the present invention will be described below with reference to the drawings.
第１図及び第２図においては、熱可塑性繊維を含む不
織布２を加熱下にエンボス処理して互いに独立し底面が
開口する中空の多数の凸部３と一連に連続する凹部５と
を規則的に配列形成し、凸部３の頂面に疎水性皮膜層４
を一体に融着接合することで、表面シート１を構成して
ある。In FIG. 1 and FIG. 2, the nonwoven fabric 2 containing thermoplastic fibers is embossed under heating to form a large number of hollow projections 3 which are independent of each other and have an open bottom surface, and a series of continuous depressions 5. The hydrophobic coating layer 4 is formed on the top surface of the convex portion 3.
Are integrally fused to form the topsheet 1.
不織布２は、メルトボンド不織布、スパンボンド不織
布、その他の不織布を使用することができる。不織布２
は、熱可塑性繊維を10％以上含んでいることが、加熱下
のエンボス処理によるその形態保持と、皮膜層４の凸部
３に対する融着接合強度をはかるうえで好ましい。不織
布２は、必要に応じて、界面活性剤で処理するか、その
活性剤を構成繊維に混合して構成することで、体液の透
過性をよくする。不織布２の目付、見掛け厚さは、一般
には、それぞれ５〜50g/m2、0.5〜1.5mmにすればよい。As the nonwoven fabric 2, a melt-bonded nonwoven fabric, a spun-bonded nonwoven fabric, or another nonwoven fabric can be used. Non-woven fabric 2
It is preferable to contain 10% or more of thermoplastic fiber in order to maintain its shape by embossing under heating and to measure the fusion bonding strength of the coating layer 4 to the projection 3. The nonwoven fabric 2 is treated with a surfactant, if necessary, or is mixed with a constituent fiber to improve the permeability of body fluid. In general, the basis weight and apparent thickness of the nonwoven fabric 2 may be 5 to 50 g / m 2 and 0.5 to 1.5 mm, respectively.
凸部３は、図示のように、皮膜層４を含まない高さが
凹部５の底面よりも高いことが、所要の高さを得るうえ
で必要である。凸部３の間隔Ｉは0.5〜5mmとなし、皮膜
層４を含む凸部３の高さ、すなわち、皮膜層４の上面と
凹部５の底面との間の高さＨは0.5〜3mmとなし、皮膜層
４の面積比率は10〜80％となしてあることが、凹部５に
おける体液の透過をよくする一方、後記吸収体に吸収さ
れた体液が凹部５に逆流して滲出したとき、その滲出体
液と肌との接触をできるだけ避けるようにするうえで好
ましい。As shown in the figure, it is necessary that the height of the convex portion 3 not including the coating layer 4 is higher than the bottom surface of the concave portion 5 in order to obtain a required height. The interval I between the projections 3 is 0.5 to 5 mm, and the height of the projections 3 including the coating layer 4, that is, the height H between the upper surface of the coating layer 4 and the bottom of the recess 5 is 0.5 to 3 mm. When the area ratio of the coating layer 4 is set to 10 to 80%, the permeation of the bodily fluid in the concave portion 5 is improved. On the other hand, when the bodily fluid absorbed by the absorbent body flows back into the concave portion 5 and exudes, It is preferable in order to minimize contact between the exuded body fluid and the skin.
皮膜層４の厚さは、凸部３の頂面を被覆することがで
きるとともに、不織布２の柔軟性を阻害しないかぎり
は、特に問わない。The thickness of the coating layer 4 is not particularly limited as long as it can cover the top surface of the projection 3 and does not impair the flexibility of the nonwoven fabric 2.
こした表面シート１を得るには、例えば、不織布２を
加熱下にエンボス処理したのうちに、不織布２の上面に
２軸延伸処理したポリエチレンなどの熱可塑性樹脂フィ
ルムを緊張下に重ね合せ、そのフィルムに熱風を当て
る。そうすることにより、フィルムの全体を軟化させ、
凸部３の頂面に接触するフィルム部分を融着させるとと
もに、凹部５上に位置するフィルム部分を収縮させて凸
部３に引き寄せることで、皮膜層４を形成する。また、
この方法にかえて、凸部３を賦与する一対の表面凹凸ロ
ールの一方の表面に不織布２を当てた状態で、凸部３の
頂面に樹脂を塗布して皮膜層４を形成することもでき
る。In order to obtain the surface sheet 1, for example, while the nonwoven fabric 2 is embossed under heating, a thermoplastic resin film such as polyethylene biaxially stretched is superposed under tension on the upper surface of the nonwoven fabric 2. Apply hot air to the film. Doing so softens the entire film,
The film portion in contact with the top surface of the convex portion 3 is fused, and the film portion located on the concave portion 5 is contracted and drawn to the convex portion 3 to form the coating layer 4. Also,
Instead of this method, it is also possible to form the coating layer 4 by applying a resin to the top surface of the convex portion 3 in a state where the nonwoven fabric 2 is applied to one surface of the pair of surface uneven rolls providing the convex portion 3. it can.
前記構成を有する表面シート１は、例えば、第３図に
示すように、吸収体６の下面及び側面に不透液性シート
７を位置させ、この積層体の全体を表面シート１（ただ
し、第３図では、凸部３及び凹部５の図示を省略してあ
る）で包括して生理用ナプキンを構成するのに使用す
る。As shown in FIG. 3, for example, as shown in FIG. 3, the topsheet 1 having the above-described configuration has the liquid-impermeable sheet 7 positioned on the lower surface and side surfaces of the absorber 6, and the whole of the laminate is topsheet 1 In FIG. 3, the projections 3 and the depressions 5 are not shown) and are used to compose a sanitary napkin.
以上の構成及び作用を有する本発明に係る表面シート
によれば、特定の面積比率、間隔及び高さを有し互いに
独立する凸部頂面上の疎水性皮膜層には体液がほとんど
残留することがなく、そのため肌に与える湿潤感やべと
つき感を最少にすることができる。According to the topsheet according to the present invention having the above-described configuration and action, the body fluid hardly remains in the hydrophobic coating layer on the top of the convex portion having a specific area ratio, interval, and height and independent from each other. Therefore, it is possible to minimize the feeling of wetness and stickiness given to the skin.
各凸部は、その底面が開口する中空であってクッショ
ン性を有するから、肌当接感に優れ、変形しても容易に
復元する。Each convex portion is hollow with an open bottom surface and has cushioning properties, so that it has an excellent skin contact feeling and easily recovers even if deformed.
しかも、各凸部間の透液部としての凹部は、凸部の変
形でその透液機能を阻害されることがないから、体液を
十分に透過させることができる。In addition, since the concave portion as the liquid-permeable portion between the convex portions does not hinder the liquid-permeating function due to the deformation of the convex portion, the body fluid can be sufficiently transmitted.
第１図は、本発明の実施例に係る表面シートの一部の平
面図。 第２図は、同表面シートの拡大断面図。 第３図は、同表面シートを適用した生理用ナプキンの一
部切欠斜視図。 １……表面シート、２……不織布 ３……凸部、４……皮膜層 ５……凹部、Ｉ……間隔 Ｈ……高さFIG. 1 is a plan view of a part of a topsheet according to an embodiment of the present invention. FIG. 2 is an enlarged sectional view of the topsheet. FIG. 3 is a partially cutaway perspective view of a sanitary napkin to which the topsheet is applied. DESCRIPTION OF SYMBOLS 1 ... Top sheet, 2 ... Nonwoven fabric 3 ... Convex part, 4 ... Coating layer 5 ... Concave part, I ... Interval H ... Height
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) A61F 13/54 A61F 13/15 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) A61F 13/54 A61F 13/15
Claims (1)
独立し底面が開口する中空の多数の凸部および一連に連
続する凹部を所要パターンで配列形成し、前記凸部の頂
面に熱可塑性かつ疎水性皮膜層を一体に融着接合してあ
り、前記皮膜層を含まない前記凸部の高さを前記凹部の
底面よりも高くなし、前記皮膜層の面積比率を10〜80％
になし、その皮膜層を含む前記凸部の高さを0.5〜3mmに
なしてある吸収性物品の表面シート。1. A liquid-permeable nonwoven fabric containing thermoplastic fibers, in which a number of hollow projections and a series of continuous depressions which are independent from each other and have an open bottom surface are arranged and formed in a required pattern. A plastic and hydrophobic coating layer is integrally bonded by fusion bonding, the height of the projections not including the coating layer is made higher than the bottom of the recess, and the area ratio of the coating layer is 10 to 80%.
A surface sheet of an absorbent article, wherein the height of the projections including the coating layer is 0.5 to 3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2134440A JP2888603B2 (en) | 1990-05-24 | 1990-05-24 | Surface sheet for absorbent articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2134440A JP2888603B2 (en) | 1990-05-24 | 1990-05-24 | Surface sheet for absorbent articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0434082A JPH0434082A (en) | 1992-02-05 |
| JP2888603B2 true JP2888603B2 (en) | 1999-05-10 |
Family
ID=15128409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2134440A Expired - Lifetime JP2888603B2 (en) | 1990-05-24 | 1990-05-24 | Surface sheet for absorbent articles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2888603B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4167404B2 (en) * | 2001-04-18 | 2008-10-15 | 大王製紙株式会社 | Sanitary napkin |
| US8030535B2 (en) * | 2002-12-18 | 2011-10-04 | The Procter & Gamble Company | Sanitary napkin for clean body benefit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ220354A (en) * | 1986-05-30 | 1990-01-29 | Chicopee | Non-woven facing material, for absorbent products, coated with a repellent material |
| JPH03130478A (en) * | 1989-10-16 | 1991-06-04 | Daiwabou Kurieito Kk | Production of complex sheet |
| JP2974715B2 (en) * | 1990-02-15 | 1999-11-10 | 大日本印刷株式会社 | Water-permeable sheet body and method for producing the same |
-
1990
- 1990-05-24 JP JP2134440A patent/JP2888603B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0434082A (en) | 1992-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW406017B (en) | Absorbent article having improved integrity and acquisition | |
| JP3258909B2 (en) | Disposable body fluid absorbent articles | |
| US5649917A (en) | Sanitary napkin having barrier means | |
| TW300164B (en) | ||
| JP3061485B2 (en) | Surface sheet for body fluid absorbent articles | |
| JP4975804B2 (en) | Women's hygiene articles with corrugated patterns | |
| JP4198849B2 (en) | Absorbent articles | |
| JPS5925369Y2 (en) | Liquid-absorbing articles | |
| JP4070804B2 (en) | Capillary laminate material | |
| JPH08117277A (en) | Sanitary napkin | |
| JPH07328060A (en) | Disposable body fluid absorbing material | |
| WO1993019715A1 (en) | Absorbent article having a nonwoven topsheet with fluid impervious areas | |
| KR19980701518A (en) | ABSORBENT ARTICLE WITH EXPANDABLE BACKSHEET | |
| JP2000333992A (en) | Feces treating disposable wearing article | |
| HU215074B (en) | An absorbent article | |
| JP2000210328A (en) | Absorptive article for body fluid treatment | |
| KR20010022690A (en) | Anatomically shaped disposable absorbent article with high lobe resiliency | |
| CA2132845C (en) | Sanitary napkin having barrier means | |
| JP2003284741A (en) | Absorbent goods | |
| WO1993019711A9 (en) | Sanitary napkin having barrier means | |
| JPH09505222A (en) | Fibrous and Porous Stereoscopic Macroscopically Expanding Plastic Webs | |
| JP3930741B2 (en) | Absorbent articles | |
| JP2888603B2 (en) | Surface sheet for absorbent articles | |
| JP4912004B2 (en) | Heat embossing method in the manufacture of absorbent articles | |
| EP0622064A2 (en) | Hygienic absorbent article |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080219 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090219 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100219 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100219 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110219 Year of fee payment: 12 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110219 Year of fee payment: 12 |